1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 203 Pipe Hanger Equipment for Fire Protection ServiceUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUT
2、HORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Pipe Hanger Equipment for Fire Protection Service, UL 203 Tenth Edition, Dated February 3, 2015 Summary of Topics This new edition of ANSI/UL 203 was issued to incorporate the following changes in
3、requirements: 1. Clarication of Requirements for Brackets in Paragraphs 6.2 and 6.3; Clarication of Requirements for Pipe Hangers in Paragraph 6.7; and Clarication of Requirements for the Installation of Hangers in Paragraph 16.2 The new and revised requirements are substantially in accordance with
4、Proposal(s) on this subject dated September 26, 2014. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwise without prior permission of UL. UL provides th
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7、andard, regardless of the form of the claim. Users of the electronic versions of ULs Standards for Safety agree to defend, indemnify, and hold UL harmless from and against any loss, expense, liability, damage, claim, or judgment (including reasonable attorneys fees) resulting from any error or devia
8、tion introduced while purchaser is storing an electronic Standard on the purchasers computer system. The requirements in this Standard are now in effect, except for those paragraphs, sections, tables, gures, and/or other elements of the Standard having future effective dates as indicated in the note
9、 following the affected item. The prior text for requirements that have been revised and that have a future effective date are located after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. FEBRUARY 3, 2015 UL 203 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION
10、OR DISTRIBUTION WITHOUT PERMISSION FROM UL FEBRUARY 3, 2015 UL 203 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL FEBRUARY 3, 2015 1 UL 203 Standard for Pipe Hanger Equipment for Fire Protection Service The First and
11、 Second editions were titled Standard for Pipe Hanger Equipment . First Edition January, 1958 Second Edition June, 1963 Third Edition May, 1966 Fourth Edition October, 1971 Fifth Edition September, 1977 Sixth Edition March, 1985 Seventh Edition October, 1989 Eighth Edition October, 1996 Ninth Editio
12、n January, 2005 Tenth Edition February 3, 2015 This ANSI/UL Standard for Safety consists of the Tenth Edition. The most recent designation of ANSI/UL 203 as an American National Standard (ANSI) occurred on February 3, 2015. ANSI approval for a standard does not include the Cover Page, Transmittal Pa
13、ges, Title Page, or effective date information. Comments or proposals for revisions on any part of the Standard may be submitted to UL at any time. Proposals should be submitted via a Proposal Request in ULs On-Line Collaborative Standards Development System (CSDS) at http:/. ULs Standards for Safet
14、y are copyrighted by UL. Neither a printed nor electronic copy of a Standard should be altered in any way. All of ULs Standards and all copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. COPYRIGHT 2015 UNDERWRITERS LABORATORIES INC. ANSI/
15、UL 203-2015UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL FEBRUARY 3, 2015 PIPE HANGER EQUIPMENT FOR FIRE PROTECTION SERVICE - UL 203 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITH
16、OUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .4 2 Components 4 3 Units of Measurement .5 4 Undated References 5 5 Glossary .5 CONSTRUCTION 6 General 8 7 Materials .9 8 Protective Coatings .9 9 Use in Environmental Air Handling Spaces 10 10 Retaining Straps 10 PERFORMANCE 11 Metallic Coating
17、Thickness Test 10 12 Pull Test .12 12.1 General .12 12.2 Concrete inserts 14 12.3 Expansion shells .15 12.4 Fasteners (including powder-driven) 15 12.5 Welding studs .15 12.6 C clamps 16 13 Vibration Test 16 14 Upward Thrust Test .16 MARKINGS 15 General 17 INSTRUCTIONS 16 Installation Instructions 1
18、7 FEBRUARY 3, 2015 PIPE HANGER EQUIPMENT FOR FIRE PROTECTION SERVICE - UL 203 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover the performance of pipe hanger equipment for use in supporting p
19、iping employed in sprinkler systems, water-spray systems, and other piping systems used for re-protection service. 1.2 Requirements for the installation of pipe hangers and auxiliary equipment and limitations for use of specic sizes of hangers and pipe are included in the Standard for the Installati
20、on of Sprinkler Systems, NFPA 13, and the Standard for Water-Spray Fixed Systems for Fire Protection, NFPA 15. 1.3 These requirements cover design variations of hangers dened in Section 5, and do not cover products fabricated from rods of iron or steel with diameters specied by the Standard for the
21、Installation of Sprinkler Systems, NFPA 13, such as U-type hangers, hanger rods, coach screws, and similar products. 2 Components 2.1 Except as indicated in 2.2, a component of a product covered by this standard shall comply with the requirements for that component. 2.2 A component is not required t
22、o comply with a specic requirement that: a) Involves a feature or characteristic not required in the application of the component in the product covered by this standard, or b) Is superseded by a requirement in this standard. 2.3 A component shall be used in accordance with its rating established fo
23、r the intended conditions of use. 2.4 Specic components are incomplete in construction features or restricted in performance capabilities. Such components are intended for use only under limited conditions, such as certain temperatures not exceeding specied limits, and shall be used only under those
24、 specic conditions. FEBRUARY 3, 2015 PIPE HANGER EQUIPMENT FOR FIRE PROTECTION SERVICE - UL 203 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 3 Units of Measurement 3.1 Values stated without parentheses are the requirement. Values in pare
25、ntheses are explanatory or approximate information. 4 Undated References 4.1 Any undated reference to a code or standard appearing in the requirements of this standard shall be interpreted as referring to the latest edition of that code or standard. 5 Glossary 5.1 For the purpose of this standard th
26、e following denitions apply. 5.2 BAND HANGER A type of hanger that is adjustable and utilizes a band looped around the pipe. 5.3 BRACKET A cantilever-type hanger that is attached directly to a vertical surface of the building structure. 5.4 C CLAMP A hanger that grips a ange by means of a jaw and se
27、tscrew combination. 5.5 CEILING FLANGE A hanger that is attached directly to an overhead surface of a building structure. 5.6 CLAMP A hanger that is rigidly attached to the ange of a steel structural member. a) Flange Clamp A clamp that is rigidly attached to both edges of the bottom ange of a struc
28、tural member. b) C Clamp A clamp that is intended to attach rigidly to one edge of the top, and, or bottom ange of a structural member. 5.7 CLAMP (RISER) A type of pipe clamp used to support risers at various levels. 5.8 CLEVIS HANGER A type of split ring hanger. 5.9 CLIP A pipe support, usually one
29、 piece and nonadjustable, that only partially embraces a pipe and attaches directly to a building structure. 5.10 CONCRETE INSERT A hanger that is intended to be inserted into freshly poured concrete by which means the hanger is attached to the building structure. 5.11 COUPLING A hanger used to conn
30、ect expansion shells or fasteners to a rod. Couplings have male or female threads and have straight, reducing, or increasing patterns. 5.12 EXPANSION ANCHOR (POST INSTALLED ANCHOR) A hanger that is inserted into a self-drilled or predrilled hole in hardened concrete and then set, usually by tighteni
31、ng of a bolt, setting of a cam or semisoft member, or forced expansion over a hardened steel plug. FEBRUARY 3, 2015 PIPE HANGER EQUIPMENT FOR FIRE PROTECTION SERVICE - UL 203 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 5.13 HANGER A uni
32、t assembly used singly or in combination with other assemblies for supporting or hanging pipe. 5.14 NPS (NOMINAL PIPE SIZE) A dimensionless designator for pipe sizes dened in standards including ASTM A53, ASTM A135 and ASTM A795 used to replace terms such as “Nominal Diameter” and “Nominal Size”. 5.
33、15 POWDER DRIVEN FASTENER A hanger where the shank of the fastener is driven into concrete or steel by use of a special impact tool powered by an explosive charge similar to a rearm charge. Fasteners have male or female threads. 5.16 RETAINING STRAP A hanger part used to hold a hanger in its intende
34、d position, commonly a Beam clamp or C clamp onto a beam. 5.17 RING A pipe hanger that completely encircles a pipe without a positive gripping action. a) Solid Clip Ring One that has to be slipped onto the end of the pipe and is not able to be opened in any way for attachment to the pipe after the p
35、ipe line is assembled. b) Split Swivel Ring One that is capable of being opened so that the pipe is able to be put into the ring after the pipe line is assembled. c) Solid Swivel Ring A solid ring that has a top swivel in which the hanger is able to be connected to a rod after it has been installed
36、on the pipe. 5.18 SURGE DEVICE A hanger mechanism or assembly that is intended to retain the system pipe in its intended position during sprinkler or nozzle operation and water discharge. This device can be an accessory to a pipe hanger, a pipe hanger with this feature or a separate assembly. This i
37、s generated text for gtxt. FEBRUARY 3, 2015 PIPE HANGER EQUIPMENT FOR FIRE PROTECTION SERVICE - UL 203 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Figure 5.1 Some common types of pipe hanger equipment FEBRUARY 3, 2015 PIPE HANGER EQUIPM
38、ENT FOR FIRE PROTECTION SERVICE - UL 203 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONSTRUCTION 6 General 6.1 A pipe hanger shall be constructed to t the appropriate rod sizes specied in Table 6.1 for the sizes of pipe shown and shall
39、 have the strength to support the test loads, specied in the Pull Test, Section 12, without rupture, pullout, or release of load. Washers shall not be used to reduce an oversize hole to accommodate a rod. A pipe hanger shall be permitted to be used with a maximum pipe size less than the maximum refe
40、renced for a rod size in Table 6.1 when marked with the maximum pipe size (See 15.1). Table 6.1 Hanger rod sizes Pipe size Minimum hanger rod size NPS OD Inches (mm) Inch (mm) 3/4 1.05 (26.7) 3/8 (9.6) 1 1.32 (33.4) 3/8 (9.6) 1-1/4 1.66 (42.2) 3/8 (9.6) 1-1/2 1.90 (48.3) 3/8 (9.6) 2 2.38 (60.3) 3/8
41、(9.6) 2-1/2 2.88 (73.0) 3/8 (9.6) 3 3.50 (88.9) 3/8 (9.6) 3-1/2 4.00 (101.6) 3/8 (9.6) 4 4.50 (114.3) 3/8 (9.6) 5 5.56 (141.2) 1/2 (12.7) 6 6.63 (168.3) 1/2 (12.7) 8 8.63 (219.2) 1/2 (12.7) 10 10.75 (273.1) 5/8 (15.8) 12 12.75 (323.9) 5/8 (15.8) 6.2 A bracket shall be of such construction that the r
42、eactive force on any one bolt or screw is no greater than the load applied on the cantilever portion of the device, unless conformance of the fastener is evaluated for compliance. 6.3 If a bracket has a prying effect that causes an increased force on any one bolt or screw that is greater than the lo
43、ad applied to the cantilever portion of the device, then the specic fastener for use with the bracket shall be utilized for testing and indicated in the manufacturers installation instructions. Other fasteners shall not be permitted unless specically tested and allowed by the manufacturers installat
44、ion instructions. 6.4 Accommodation of some items of hanger equipment, such as powder-driven fasteners and 1/4 and 5/16 inch (6.4 and 7.9 mm) size expansion anchors, to the standard hanger rod sizes shall be achieved by use of increaser couplings that have the strength to support the test loads appl
45、icable to the maximum pipe sizes intended for use with the hanger equipment. FEBRUARY 3, 2015 PIPE HANGER EQUIPMENT FOR FIRE PROTECTION SERVICE - UL 203 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 6.5 Ceiling anges for pipe sizes up to
46、2 NPS shall have at least two supporting screw holes; for pipe sizes 2-1/2 to 8 NPS, not less than three supporting screw holes. 6.6 Hanger-rod sizes designated in Table 6.1 are the nominal diameters associated with machined threads. The diameter of a rod provided with a rolled thread shall be not l
47、ess than the root diameter of the thread. 6.7 Pipe hangers intended for use with CPVC pipe shall be constructed so as to not apply compressive force to the pipe. 7 Materials 7.1 Hangers and their components shall be made of ferrous materials. Exception: When nonferrous materials, for example, plasti
48、cs, are used, they shall be investigated to evaluate their resistance to external re exposure and effects of aging. 8 Protective Coatings 8.1 When a hanger or part of a hanger is made of at iron or steel, the thickness of the metal, unless protected by coating as described in 8.2, shall be at least
49、3/16 inch (4.8 mm). Exception No. 1: Retaining strap material for a C clamp fabricated from unprotected at steel not less than 1/8 inch (3.2 mm) #11 gauge (nominal 0.120 inches) thick. Exception No. 2: Clevis-type hangers and other at iron hangers, fabricated from steel at least 1/8 inch (3.2 mm) #11 gauge (nominal 0.120 inches) thick and at least 1 inch (25.4 mm) wide and when the support (hanger) exhibits strength values
